By DANIEL J. WAKIN

Published: November 9, 2007

Claudio Abbado, left, is back on the podium. Two months after he canceled all appearances for the near future -- including a much-awaited visit to Carnegie Hall with the Lucerne Festival Orchestra in early October -- Mr. Abbado led performances on Tuesday and Wednesday in Bologna, Italy, with members of the Orchestra Mozart, which he directs. Mr. Abbado, who suffered from stomach cancer, had cited poor health and the advice of doctors but did not disclose what was wrong. A spokesman for Orchestra Mozart, Diego Ravetti, said Mr. Abbado, 74, had undergone a small surgical procedure unrelated to his past illness and been ordered to rest as a precaution. ''He's in good form,'' Mr. Ravetti said. ''He came back to life. He suffers away from the podium.''